CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

wave resistance problem with SHIPFLOW

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 16, 2010, 01:38
Default wave resistance problem with SHIPFLOW
  #1
New Member
 
gtfeng
Join Date: Apr 2010
Posts: 5
Rep Power: 16
gtfeng is on a distinguished road
i'm using shipflow software to calculation the wave resistance with non-linear free surface boundary. but the result is about 10*e-3, no matter how many panels on the hull.
the freesurface has a distribution of 25 panels per wavelength in longitudinal direction. the tranverse direction is chosen that the aspect ratio of the freesurface panels is around 1.
is there anyone can help?
gtfeng is offline   Reply With Quote

Old   April 17, 2010, 12:40
Default
  #2
Member
 
Skeptic
Join Date: Mar 2009
Posts: 67
Rep Power: 17
Lysistrata is on a distinguished road
Quote:
Originally Posted by gtfeng View Post
i'm using shipflow software to calculation the wave resistance with non-linear free surface boundary. but the result is about 10*e-3, no matter how many panels on the hull.
the freesurface has a distribution of 25 panels per wavelength in longitudinal direction. the tranverse direction is chosen that the aspect ratio of the freesurface panels is around 1.
is there anyone can help?
Have you specified the ship speed correctly?

Last edited by Lysistrata; April 17, 2010 at 12:40. Reason: grammar
Lysistrata is offline   Reply With Quote

Old   April 20, 2010, 11:40
Default
  #3
New Member
 
gtfeng
Join Date: Apr 2010
Posts: 5
Rep Power: 16
gtfeng is on a distinguished road
Quote:
Originally Posted by Lysistrata View Post
Have you specified the ship speed correctly?
yes!
the command used for a small draught, the result seems no problem. what's the reason makes the difference?
gtfeng is offline   Reply With Quote

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[Commercial meshers] Handling cyclic BC from gambit to openfoam for a cascade airfoil problem - OF 1.6 maverick OpenFOAM Meshing & Mesh Conversion 2 June 18, 2011 05:36
Help! Compiled UDF problem 4 Wave tank tutorial Shane FLUENT 1 September 3, 2010 03:32
how i can approch the problem about shock wave chandrakanth Main CFD Forum 0 December 6, 2008 03:27
Assistance with one-way wave equation Frank Main CFD Forum 5 March 14, 2007 11:56
problem in solving "wave generation" problem san FLUENT 2 April 4, 2006 00:37


All times are GMT -4. The time now is 16:34.